Locomotive driving box



, ,1. F. YOC ONNOR LOCQMOTIVE DRIVING BOX .April 23, 1929. I

Filed Aug. 29, 1924 1 at M P I m fl Apr. 23, 1929.

barren STATES JOIEZIQ' F. UCOI INC-R, 01F CEIOAGG, ILLINUIS, ASSIGNOR,BY MESNE ASSIGNMENTS, T0

PATENT" OFFICE.

'W. Lrihl'EE, INQ, CORPORATION OF DELAWARE.

LOCOMOTIVE DRIVING BOX.

Application filed August 29, 1924. Seria1 N0.'734,833.

This invention relates to locomotive driving boxes.

An object or? the invention is to provide a simple an d eilicient wearcompensating; device ifor iise in connection with the brasses or linersprovided in locomotive driving boxes, such device being arranged tocompensate iljor f n such a manner as'to avoid or minimize lari almovement or play oi the axles longituilinallv of the locomotive.

A more specilie object oi the invention contemplates the use oi a linermade up in sec tions, and the provision of eccentric arched seats toaccon'iniodate the sections of the liner, together with wedge means forell'ecting adjustment of said sections, to compensate lior wear causedby the lateral movement of the axle longitudinally of the locomotive,such sections engaging the periphery ol? the axle from the top down topoints horizontally disposed below the axial center thereo'l verticalwear on the liner sections, which is eatest in intent, beingautomatically taken up by the action of gravity.

Uther and :l'urther objects oil the invention will more clearly andfully appear from the description and drawings hereinafter following. 1I

in. the drawings, Fig. 1 1s a front OlOVittl l1- al view, partly insection, ot a fragment oi? the 'lllltlCfll'ztlllO oil a locomotive,containing a driving box, showing the application of the ""iventionthereto, And Fig. 2 is a view, partly in section, on the line oi 1.

Referring more particularly to the drawings, A. represents the bodyportion of a locomotive side irame, including the usual pedestals l5,and pedestal brace C. The driving box may be of any desiredconstructimi, provided with the customary shoe l) and wedge E, a drivingaxle oi the locomotive being indicated at F. c a

As contemplated by my invention, the driving box is provided with opositely disposed merged arcuate seats indicated by the numerals 3 and4;. The curve of each oi the seats 3 and 1 preferably has a radius aboutequal to that ol the axle, and each seat oil? such term that acontinuation oi one portion of the curve thereoi will intersect theperiphery ol the axle, preferably at a point below the axisthereoflwhile the outer portions of said curvciil seats are spaced fromthe periphery of said axle. In other words, the center oil the curve ofeach seat is eccentrically disposed ly, which snugly lit between theaxle F and seats 3 and l. \Vlien the sections (3 and 7 are assembled,the resulting bearing is substantially continuous at the center asindicated all 8. r

The section G of the liner has "formed in its outer peripheral surfaces,adjacent the meeting edges oi? the liner sections, a plurality oi?transversely disposed, spaced, wedge cavities 9, the wedge surfaces 10of which are inclined toward the outer edge of the liner section, andinwardly toward the liner section '1", as shown in the drawings. Theliner section 7 is provided. with a plurality of wedge cavities 11,similar in all respects to the cavities 10, except that the we'dgingsurfaces 12 of the cavities 11, are oppositely disposed with respect tothe surfaces 10, and the surfaces 12 oi the wedge cavities 11 are spaceda suitable distance from the surfaces 10.

Disposed in the cavities 9 and 11 is a plurality of wedges 13, therepreferably being one wedge for each cavity, and such wedges areconnected together, preferably by Webs 14, the outer of the wedgeportions 13 having connected therewith the end of an adjusting screw 15.The adjusting screw 15 extends through a plate 16, which may be fastenedto the structure of the driving box by means of screw bolts 1.7 asshown, and on the outer end of the screw 15 is threaded a nut 18,adapted to bear against the plate 16, to adjustably pull the wedges 13,so as to spread the liner sections 6 and 7.

When worn, the liner sections 6 and 7 are spread apart and fed outwardlyrelatively to the seat, and circuinferentially relatively to said axle,by means of the wedges 13, which receive longitudinal movement throughthe medium of the adjusting screw 15. This ell ects adjustment oi theliner portions 6 and 7, so that they are forced downwardly and inwardlytoward points 5-4), such adjustment compensating for the wear on theliners caused by the lateral movement of the axle horizontally relativeto the driving box.

lVhile I have herein shown and described what I now consider thepreferred manner of carrying out the invention, the same is merelyillustrative, and I contemplate all changes and modifications that comewithin the scope of the claims appended hereto,

I claim:

1. In a driving box for locomotives, the combination with a box memberproper having an opening adapted to receive an axle, said opening havingspaced side walls which are spaced from the axle, said box member properbeing provided with a seat at the upper end thereof, said seat havingcurved unobstructed, continuous guide surfaces converging downwardlyandinwardly toward the axle and merging with the side walls of the journalbox opening; of a sectional liner mounted in said seat, said liner beingarranged to bear directly on the axle, and the sections of the linerco-operating respectively with the curved guide surfaces of the seat;and means for adjusting the liner sections along said curved surfacestoward the axle, the adjusting movement of said liner sections beinglimited only by engagement with the axle.

2. In a device of the character described, the combination with a boxprovided with walled opening adapted to receive an axle, said box havinga seat presenting two separate curved bearing surfaces convergingdownwardly and inwardly toward the axle, said curved surfaces beingcontinuous and merging with the side walls of the journal box opening,the bottom ends of said surfaces being unobstructed; of a sectionalbrass in said seat, the sections of said brass beingadjustable alongsaid bearing surfaces circumferentially of the axle and inwardly towardthe same; and means for wedging said sections apart circumferentially ofthe axle to force the bearing surfaces thereof toward said axle.

3. In a. driving box for an axle, the combination with a box memberproper having a walled opening adapted to receive the axle; of-asectional bearing liner for said box; seats on opposite sides'of saidbox each having a continuous curved guide surface on which the sect-ionsof said line-rs bear respectively, the lower end portions of saidcontinuous curved surfaces merging with the adjacent walls of thejournal box opening, said curved surfaces of said seat members beingeccentric with respect to each other, and the curved surraces of both ofsaid members being eccentric to the axial center of the x10; and meansfor spreading the sections of said liner apart to adust the same on saidcurved surfaces of the seats circuinferentially of the axle andlaterally inwardly toward the same to compensate for wear caused bylateral movement of the axle with respect to the box.

4. In a driving box for locomotives, the con'ibination with a drivingbox proper, having an opening adapted to receive an axle and providedabove said opening with offset, arcnate seats, the lower edges of whichmerge with the surfaces defining said opening, whereby shoulders areeliminated; of a pair of approximately semi-creseent-shaped liners, eachfitting one of said seats on its outer side and the axle on its innercurved side; and means for shifting said liners circumferentially onsaid seats and thereby projecting the lower edges of the liners intosaid openmg,

In witnessthat I claim the foregoing I have hereunto subscribed my namethis 19th day of August, 1924.

JOHN F. O'CONNOR.

